Sampling device
CA 1188131 A · Owner: Polysar Limited · Inventors: Shortt, James W.; Rees, David E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A device is provided for obtaining a sample of liquid from a liquid stream which comprises a moveable piston assembly within a hollow cylindrical member wherein the piston assembly comprises two end members joined by a longitudinal member to provide space within the device for the liquid to flow through or to be removed as the sample.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 4, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.